WATCH: Trump Rips Dem “Star Witness” John Dean in Scathing Critique

On Monday, President Trump responded to the media’s focus on Democrats’ star witness at the House Judiciary Committee hearing, John Dean, who he called a “loser.”

“Look, John Dean’s been a loser for many years,” said Trump, later going on to note, “I think he was disbarred, and he went to prison,” sarcastically adding, “other than that, he’s doing a great job.”

In a social media post, the president called Dean a “sleaze bag” and has previously called the embattled Watergate figure a “RAT.”

Republican politicians also had harsh words during Monday’s hearing, repeatedly picking apart Dean’s comments, as well as his credibility.